**Problem**
Currently, all of Wikidata's R Shiny based dashboards are showing errors. This is a well-known problem that we can currently not fix.
**Steps to reproduce:**
* Open e.g. https://wikidata-analytics.wmcloud.org/app/WDCM_OverviewDashboard
**What happens?**
Only an error message is shown:
```
Error
Status code: 500
Message: Failed to start container
Stack Trace:
eu.openanalytics.containerproxy.ContainerProxyException: Failed to start container
at eu.openanalytics.containerproxy.backend.AbstractContainerBackend.startProxy(AbstractContainerBackend.java:113)
at eu.openanalytics.containerproxy.service.ProxyService.startProxy(ProxyService.java:213)
...
```
(stack trace cropped after three lines)
or
```
Error
Status code: 500
Message: Container did not respond in time
Stack Trace:
eu.openanalytics.containerproxy.ContainerProxyException: Container did not respond in time
at eu.openanalytics.containerproxy.backend.AbstractContainerBackend.startProxy(AbstractContainerBackend.java:118)
at eu.openanalytics.containerproxy.service.ProxyService.startProxy(ProxyService.java:213)
...
```
(stack trace cropped after three lines)
**What should have happened instead?**
An analytics dashboard should have opened.
**List of affected dashboards:**
WDCM
https://wikidata-analytics.wmcloud.org/app/WDCM_OverviewDashboard
https://wikidata-analytics.wmcloud.org/app/WDCM_UsageDashboard
https://wikidata-analytics.wmcloud.org/app/WDCM_SemanticsDashboard
https://wikidata-analytics.wmcloud.org/app/WDCM_BiasesDashboard
https://wikidata-analytics.wmcloud.org/app/WDCM_GeoDashboard
https://wikidata-analytics.wmcloud.org/app/WDCM_SitelinksDashboard
https://wikidata-analytics.wmcloud.org/app/WDCM_TitlesDashboard
https://wikidata-analytics.wmcloud.org/app/WDCM_StatementsDashboard
Tools for Wikidata editors
https://wikidata-analytics.wmcloud.org/app/CuriousFacts
https://wikidata-analytics.wmcloud.org/app/CurrentEvents
Tools for Wictionary editors
https://wiktionary-analytics.wmcloud.org/Wiktionary_CognateDashboard (see for details T321666)
Other
https://wikidata-analytics.wmcloud.org/app/WikidataAnalytics
https://wikidata-analytics.wmcloud.org/app/WD_pageviewsPerNamespace
https://wikidata-analytics.wmcloud.org/app/WD_percentUsageDashboard
https://wikidata-analytics.wmcloud.org/app/WD_HumanEdits
https://wikidata-analytics.wmcloud.org/app/WD_GameReferenceHunt
https://wikidata-analytics.wmcloud.org/app/WD_Inequality
https://wikidata-analytics.wmcloud.org/app/WD_ExternalIdentifiersDashboard
https://wikidata-analytics.wmcloud.org/app/WD_LanguagesLandscape
**Notes:**
* The issue started when Goran made an attempt at repairing the Wiktionary Cognate Dashboard (see T321666#8506822).
* The problem might be related to the interaction between CloudVPS and ShinyProxy.
**Acceptance criteria:**
[] We understand the problem that leads to this issue.
[] The problem is solved (or if solving the problem is out of scope, then please create a follow-up task, so we can discuss it).